Radial transport modeling of high density deuterium plasmas in proto-MPEX with the B2.5-Eirene code

Rapp, Juergen; Owen, Larry W.; Canik, John; Lore, Jeremy D.; Caneses, Juan F.; Kafle, Nischal; Ray, Holly B.; Showers, Melissa A.

doi:10.1063/1.5049808

Title: Radial transport modeling of high density deuterium plasmas in proto-MPEX with the B2.5-Eirene code

Journal Article · Wed Apr 24 00:00:00 EDT 2019 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.5049808· OSTI ID:1509588

^[1];

^[1]; Kafle, Nischal ^[2];

^[2]; Showers, Melissa A. ^[2]

Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Univ. of Tennessee, Knoxville, TN (United States)

High density (≥6 × 10¹⁹ m^–3), low temperature (2–6 eV) helicon discharges in the Prototype Material Plasma Exposure eXperiment (Proto-MPEX) are analyzed with the coupled multifluid plasma, kinetic neutrals code B2.5-Eirene. The interpretative analyses are constrained by data from multiple diagnostics, including Langmuir probes, Mach probes, filterscopes, infrared TV system, Thomson scattering, and baratrons. The objectives of the transport simulations include: investigation of the effects of heating, fueling, and plasma production; pumping, and assumed radial transport models on the calculated density and temperature distributions; plasma flow profiles and power balance. The primary objective in this report is to investigate the effects of the radial transport model in full plasma (the entire length of the plasma column in Proto-MPEX) data-constrained simulations. Results from three assumed forms of the radial transport coefficients are presented, including spatially constant, radially decreasing, and Bohm (D,χ ~T_e/|B|). The results from each of the three transport coefficient sets agree qualitatively with the core (near axis) data. With the implicit T_e dependence, the Bohm coefficients tend to decrease as functions of radius, although not as strongly as the centrally peaked set. The axial variation in the Bohm coefficients is largely due to the axial structure of the magnetic field. Furthermore, the agreement of the simulations and the diagnostic data with the Bohm set indicates that transport in the plasma column of Proto-MPEX is dominated by Bohm diffusion.

View Accepted Manuscript (DOE)

View Accepted Manuscript (Publisher)

Cite

Export

Save

Research Organization:: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)

Sponsoring Organization:: USDOE Office of Science (SC)

Grant/Contract Number:: AC05-00OR22725

OSTI ID:: 1509588

Alternate ID(s):: OSTI ID: 1508677

Journal Information:: Physics of Plasmas, Vol. 26, Issue 4; ISSN 1070-664X

Publisher:: American Institute of Physics (AIP)Copyright Statement

Country of Publication:: United States

Language:: English

Citation Metrics:

Cited by: 13 works

Citation information provided by
Web of Science

References (26)

Plasma flow measurements in the Prototype-Material Plasma Exposure eXperiment (Proto-MPEX) and comparison with B2.5-Eirene modeling Kafle, N.; Owen, L. W.; Caneses, J. F. Physics of Plasmas, Vol. 25, Issue 5 https://doi.org/10.1063/1.5019266	journal	May 2018
Developing the science and technology for the Material Plasma Exposure eXperiment Rapp, J.; Biewer, T. M.; Bigelow, T. S. Nuclear Fusion, Vol. 57, Issue 11 https://doi.org/10.1088/1741-4326/aa7b1c	journal	July 2017
Helicon normal modes in Proto-MPEX Piotrowicz, P. A.; Caneses, J. F.; Green, D. L. Plasma Sources Science and Technology, Vol. 27, Issue 5 https://doi.org/10.1088/1361-6595/aabd62	journal	May 2018
Space Charge Waves in Cylindrical Plasma Columns Trivelpiece, A. W.; Gould, R. W. Journal of Applied Physics, Vol. 30, Issue 11 https://doi.org/10.1063/1.1735056	journal	November 1959
Transition from Bohm to classical diffusion due to edge rotation of a cylindrical plasma Maggs, J. E.; Carter, T. A.; Taylor, R. J. Physics of Plasmas, Vol. 14, Issue 5 https://doi.org/10.1063/1.2722302	journal	May 2007
The Challenges of Plasma Material Interactions in Nuclear Fusion Devices and Potential Solutions Rapp, J. Fusion Science and Technology https://doi.org/10.1080/15361055.2017.1333859	journal	June 2017
Power accounting of plasma discharges in the linear device Proto-MPEX Showers, M.; Piotrowicz, P. A.; Beers, C. J. Plasma Physics and Controlled Fusion, Vol. 60, Issue 6 https://doi.org/10.1088/1361-6587/aab7c8	journal	April 2018
A Monte Carlo computer program for the transport of energetic ions in amorphous targets Biersack, J. P.; Haggmark, L. G. Nuclear Instruments and Methods, Vol. 174, Issue 1-2, p. 257-269 https://doi.org/10.1016/0029-554X(80)90440-1	journal	August 1980
The behaviour of electrostatic double probes in plasmas with high-amplitude RF fields Stampa, A.; Wulf, H. O. Journal of Physics D: Applied Physics, Vol. 11, Issue 7 https://doi.org/10.1088/0022-3727/11/7/011	journal	May 1978
Direct measurement of the transition from edge to core power coupling in a light-ion helicon source Piotrowicz, P. A.; Caneses, J. F.; Showers, M. A. Physics of Plasmas, Vol. 25, Issue 5 https://doi.org/10.1063/1.5023924	journal	May 2018
Helicon plasma ion temperature measurements and observed ion cyclotron heating in proto-MPEX Beers, C. J.; Goulding, R. H.; Isler, R. C. Physics of Plasmas, Vol. 25, Issue 1 https://doi.org/10.1063/1.4994541	journal	January 2018
Transport modeling of convection dominated helicon discharges in Proto-MPEX with the B2.5-Eirene code Owen, L. W.; Rapp, J.; Canik, J. Physics of Plasmas, Vol. 24, Issue 11 https://doi.org/10.1063/1.5002534	journal	November 2017
Transport simulations of linear plasma generators with the B2.5-Eirene and EMC3-Eirene codes Rapp, J.; Owen, L. W.; Bonnin, X. Journal of Nuclear Materials, Vol. 463 https://doi.org/10.1016/j.jnucmat.2014.12.058	journal	August 2015
Studying divertor relevant plasmas in the Pilot-PSI linear plasma device: experiments versus modelling Ješko, K.; Marandet, Y.; Bufferand, H. Plasma Physics and Controlled Fusion, Vol. 60, Issue 12 https://doi.org/10.1088/1361-6587/aae80d	journal	November 2018
B2-EIRENE simulation of plasma and neutrals in MAGNUM-PSI Baeva, M.; Goedheer, W. J.; Lopes Cardozo, N. J. Journal of Nuclear Materials, Vol. 363-365 https://doi.org/10.1016/j.jnucmat.2007.01.029	journal	June 2007
Progress in the Development of a High Power Helicon Plasma Source for the Materials Plasma Exposure Experiment Goulding, R. H.; Caughman, J. B. O.; Rapp, J. Fusion Science and Technology, Vol. 72, Issue 4 https://doi.org/10.1080/15361055.2017.1352429	journal	August 2017
Plasma Modelling for the PSI Linear Plasma Device Kastelewicz, H.; Fussmann, G. Contributions to Plasma Physics, Vol. 44, Issue 4 https://doi.org/10.1002/ctpp.200410053	journal	July 2004
Anomalous Diffusion in a Linear Plasma Generator Waldmann, O.; Meyer, H.; Fussmann, G. Contributions to Plasma Physics, Vol. 47, Issue 10 https://doi.org/10.1002/ctpp.200710079	journal	December 2007
Observations of electron heating during 28 GHz microwave power application in proto-MPEX Biewer, T. M.; Bigelow, T. S.; Caneses, J. F. Physics of Plasmas, Vol. 25, Issue 2 https://doi.org/10.1063/1.5018479	journal	February 2018
On the use of double probes in RF discharges Annaratone, B. M.; Counsell, G. F.; Kawano, H. Plasma Sources Science and Technology, Vol. 1, Issue 4 https://doi.org/10.1088/0963-0252/1/4/002	journal	November 1992
RF compensation of double Langmuir probes: modelling and experiment Caneses, Juan F.; Blackwell, Boyd Plasma Sources Science and Technology, Vol. 24, Issue 3 https://doi.org/10.1088/0963-0252/24/3/035024	journal	May 2015
The Development of the Material Plasma Exposure Experiment Rapp, Juergen; Biewer, T. M.; Bigelow, T. S. IEEE Transactions on Plasma Science, Vol. 44, Issue 12 https://doi.org/10.1109/TPS.2016.2628326	journal	December 2016
Investigation of plasma behavior during noble gas injection in the end-cell of GAMMA 10/PDX by using the multi-fluid code ‘LINDA’ Islam, M. S.; Nakashima, Y.; Hatayama, A. Plasma Physics and Controlled Fusion, Vol. 59, Issue 12 https://doi.org/10.1088/1361-6587/aa8d02	journal	October 2017
Plasma Edge Physics with B2-Eirene Schneider, R.; Bonnin, X.; Borrass, K. Contributions to Plasma Physics, Vol. 46, Issue 1-2 https://doi.org/10.1002/ctpp.200610001	journal	February 2006
The Plasma Boundary of Magnetic Fusion Devices Stangeby, P. Series in Plasma Physics https://doi.org/10.1201/9781420033328	book	January 2000
The Plasma Boundary of Magnetic Fusion Devices Ghendrih, Philippe Plasma Physics and Controlled Fusion, Vol. 43, Issue 2 https://doi.org/10.1088/0741-3335/43/2/702	journal	January 2001

Similar Records

Plasma flow measurements in the Prototype-Material Plasma Exposure eXperiment (Proto-MPEX) and comparison with B2.5-Eirene modeling

Journal Article · Fri May 25 00:00:00 EDT 2018 · Physics of Plasmas · OSTI ID:1509588

Kafle, Nischal; Owen, Larry W.; Caneses Marin, Juan; +6 more

Transport modeling of convection dominated helicon discharges in Proto-MPEX with the B2.5-Eirene code

Journal Article · Tue Nov 14 00:00:00 EST 2017 · Physics of Plasmas · OSTI ID:1509588

Owen, Larry W.; Rapp, Juergen; Canik, John; +1 more

Transport simulations of linear plasma generators with the B2.5-Eirene and EMC3-Eirene codes

Journal Article · Sat Dec 20 00:00:00 EST 2014 · Journal of Nuclear Materials · OSTI ID:1509588

Rapp, Juergen; Owen, Larry W.; Bonnin, X.; +4 more

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY

Title: Radial transport modeling of high density deuterium plasmas in proto-MPEX with the B2.5-Eirene code

Citation Formats

References (26)

Similar Records

Related Subjects